Combination operators in RxJS are used to combine multiple observables into a single observable. There are several types of combination operators, including:
Merge: merges multiple observables into a single observable that emits items from each source observable in a sequence.
Concat: concatenates multiple observables into a single observable that emits the items from each source observable in sequence, one after the other.
Zip: combines the items from multiple observables into a single observable by combining the items from each observable at a corresponding index.
CombineLatest: combines the latest values from multiple observables into a single observable by emitting an item whenever any of the source observables emit an item.
WithLatestFrom: combines the latest value from one observable with the latest values from multiple other observables.
ForkJoin: combines the items from multiple observables into a single observable by emitting an item only after all of the source observables have emitted an item.
Further documentation can be found in the official RxJS documentation:
CombineLatest: https://rxjs.dev/api/operators/combineLatest
WithLatestFrom: https://rxjs.dev/api/operators/withLatestFrom
ForkJoin: https://rxjs.dev/api/operators/forkJoin